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ASME MFC 16 2014 R2019

ASME MFC 16 2014 R2019

$98.04

ASME MFC-16-2014 (R2019): Measurement of Fluid Flow in Closed Conduits With Electromagnetic Flowmeters

Published By Publication Date Number of Pages
ASME 2014 28
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This Standard is applicable to industrial electromagnetic flowmeters and their application in the measurement of liquid flow. The electromagnetic flowmeters covered by this Standard utilize an alternating electrical current (AC) or pulsed direct-current (pulsed-DC) to generate a magnetic field in electrically conductive and electrically homogeneous liquids or slurries flowing in a completely filled, closed conduit. This Standard does not cover the following: insertion-type electromagnetic flowmeters electromagnetic flowmeters used in surgical, therapeutic, or other health and medical applications applications of industrial flowmeters involving nonconductive liquids highly conductive liquids (e.g., liquid metals)

PDF Catalog

PDF Pages PDF Title
5 CONTENTS
6 FOREWORD
7 COMMITTEE ROSTER
8 CORRESPONDENCE WITH THE MFC COMMITTEE
9 1 SCOPE
2 REFERENCES
3 DEFINITIONS AND SYMBOLS
3.1 Definitions
3.2 Symbols
4 THEORY AND MEASUREMENT TECHNIQUE
4.1 Flow-Related Electromotive Force
10 Figures

Fig. 4-1 Industrial Electromagnetic Flowmeters
Table
Table 3.2-1 Symbols
11 4.2 Interfering Sources of Electromotive Force
4.3 Types of Electrodes
4.4 Calculation of Volumetric Flow Rate
Fig. 4.2-1 Examples of Electromagnetic Field (Bo) Variation With Time
Fig. 4.3-1 Examples of Electrodes for an Electromagnetic Flowmeter
12 5 FLOWMETER DESCRIPTIONS
5.1 Flowmeter Sensor
5.2 Flowmeter Transmitter
5.3 Flowmeter Transmitter Outputs
6 APPLICATION CONSIDERATIONS
6.1 Process Liquid
6.1.1 Liquid Electrical Conductivity.
6.1.2 Noisy Flow Signal.
6.2 Effects of Process Properties and Flow Profiles
6.2.1 Velocity Profile Effect.
6.2.2 Slippage.
13 6.2.3 Triboelectric Effect.
6.3 Flowmeter Sensor — Sizing Considerations
6.3.1 General Considerations.
6.3.1.1 Manufacturer-Specified Accuracy.
6.3.1.2 Pipe Mismatch.
6.3.1.3 Abrasive Slurries.
6.3.1.4 Fast-Settling Slurries.
6.3.2 Special Process Considerations.
6.4 Flowmeter Sensor — Location, Installation, and Maintenance
6.4.1 Flowmeter Sensor Location and Orientation.
6.4.1.1 Piping Effects.
Fig. 6.4-1 Electromagnetic Flowmeter System
14 6.4.1.2 Full Pipe Requirements.
6.4.1.3 Electrode Position — Horizontal Installations.
6.4.1.4 In-Situ Zero Checking.
6.4.1.5 Location With Regard to Electrical Interference.
6.4.2 Installation of Flowmeter Sensor
6.4.2.1 Installation Design.
6.4.2.2 Handling of the Flowmeter Sensor.
6.4.2.3 Pipe Alignment and Connections.
6.4.2.4 Transition Piping.
6.4.3 Electrical Considerations
6.4.3.1 Flowmeter Sensor, Flowing Liquid, and Process Piping Electrical Potential.
6.4.3.2 Cathodic Protection.
6.4.4 Coatings and Deposits.
15 6.5 Flowmeter Sensor — Materials of Construction
6.5.1 General Guidelines.
6.5.2 Liner Materials.
6.5.3 Electrode Materials.
6.6 Flowmeter Transmitter — Installation
6.7 Electrical Installation
6.8 Safety
6.8.1 Electrical Safety.
6.8.2 Mechanical Safety.
7 EQUIPMENT MARKINGS
7.1 Introduction
7.2 Flowmeter Sensor
7.3 Flowmeter Transmitter
8 CALIBRATION
8.1 Overview
16 8.2 Liquid Calibration of the Flowmeter Sensor
8.2.1 Calibration Conditions.
8.2.2 Calibration Facilities.
8.2.3 Calibration Procedure.
8.3 Calibration of the Flowmeter Transmitter
8.3.1 Electronic Calibration of the Flowmeter Transmitter Voltage Inputs and Coil Drive.
8.3.2 Electronic Calibration of the Flowmeter Transmitter User Outputs.
17 NONMANDATORY APPENDIX A ADDED DETAILS REGARDING THEORY AND MEASUREMENT TECHNIQUE
A-1 THEORY
A-2 MEASUREMENT TECHNIQUE
A-2.1 Electrochemical Electromotive Force, emfc
A-2.2 The Electromagnetic Flowmeter Explained as a Transformer
A-2.3 Transformer Electromotive Force, emft
19 NONMANDATORY APPENDIX B LINER MATERIAL GUIDELINES
21 NONMANDATORY APPENDIX C MANUFACTURER-SPECIFIED ACCURACY
C-1 SUMMARY
23 NONMANDATORY APPENDIX D CALCULATION EXAMPLES
D-1 TABLES
24 NONMANDATORY APPENDIX E BIBLIOGRAPHY
ASME MFC 16 2014 R2019
$98.04